|
1960
|
1 /* |
|
|
2 |
|
2847
|
3 Copyright (C) 1996, 1997 John W. Eaton |
|
1960
|
4 |
|
|
5 This file is part of Octave. |
|
|
6 |
|
|
7 Octave is free software; you can redistribute it and/or modify it |
|
|
8 under the terms of the GNU General Public License as published by the |
|
|
9 Free Software Foundation; either version 2, or (at your option) any |
|
|
10 later version. |
|
|
11 |
|
|
12 Octave is distributed in the hope that it will be useful, but WITHOUT |
|
|
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
|
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
|
15 for more details. |
|
|
16 |
|
|
17 You should have received a copy of the GNU General Public License |
|
|
18 along with Octave; see the file COPYING. If not, write to the Free |
|
5307
|
19 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
|
|
20 02110-1301, USA. |
|
1960
|
21 |
|
|
22 */ |
|
|
23 |
|
|
24 #ifdef HAVE_CONFIG_H |
|
|
25 #include <config.h> |
|
|
26 #endif |
|
|
27 |
|
2317
|
28 #include <cctype> |
|
|
29 |
|
3503
|
30 #include <iostream> |
|
5760
|
31 #include <vector> |
|
1960
|
32 |
|
|
33 #include "byte-swap.h" |
|
|
34 #include "data-conv.h" |
|
|
35 #include "lo-error.h" |
|
|
36 |
|
4944
|
37 #if defined HAVE_LONG_LONG_INT |
|
|
38 #define FIND_SIZED_INT_TYPE(VAL, BITS, TQ, Q) \ |
|
|
39 do \ |
|
|
40 { \ |
|
|
41 int sz = BITS / CHAR_BIT; \ |
|
|
42 if (sizeof (TQ char) == sz) \ |
|
|
43 VAL = oct_data_conv::dt_ ## Q ## char; \ |
|
|
44 else if (sizeof (TQ short) == sz) \ |
|
|
45 VAL = oct_data_conv::dt_ ## Q ## short; \ |
|
|
46 else if (sizeof (TQ int) == sz) \ |
|
|
47 VAL = oct_data_conv::dt_ ## Q ## int; \ |
|
|
48 else if (sizeof (TQ long) == sz) \ |
|
|
49 VAL = oct_data_conv::dt_ ## Q ## long; \ |
|
|
50 else if (sizeof (TQ long long) == sz) \ |
|
|
51 VAL = oct_data_conv::dt_ ## Q ## longlong; \ |
|
|
52 else \ |
|
|
53 VAL = oct_data_conv::dt_unknown; \ |
|
|
54 } \ |
|
|
55 while (0) |
|
|
56 #else |
|
3359
|
57 #define FIND_SIZED_INT_TYPE(VAL, BITS, TQ, Q) \ |
|
3358
|
58 do \ |
|
|
59 { \ |
|
|
60 int sz = BITS / CHAR_BIT; \ |
|
|
61 if (sizeof (TQ char) == sz) \ |
|
|
62 VAL = oct_data_conv::dt_ ## Q ## char; \ |
|
|
63 else if (sizeof (TQ short) == sz) \ |
|
|
64 VAL = oct_data_conv::dt_ ## Q ## short; \ |
|
|
65 else if (sizeof (TQ int) == sz) \ |
|
|
66 VAL = oct_data_conv::dt_ ## Q ## int; \ |
|
|
67 else if (sizeof (TQ long) == sz) \ |
|
|
68 VAL = oct_data_conv::dt_ ## Q ## long; \ |
|
|
69 else \ |
|
|
70 VAL = oct_data_conv::dt_unknown; \ |
|
|
71 } \ |
|
|
72 while (0) |
|
4944
|
73 #endif |
|
3358
|
74 |
|
3359
|
75 #define FIND_SIZED_FLOAT_TYPE(VAL, BITS) \ |
|
3358
|
76 do \ |
|
|
77 { \ |
|
|
78 int sz = BITS / CHAR_BIT; \ |
|
|
79 if (sizeof (float) == sz) \ |
|
|
80 VAL = oct_data_conv::dt_float; \ |
|
|
81 else if (sizeof (double) == sz) \ |
|
|
82 VAL = oct_data_conv::dt_double; \ |
|
|
83 else \ |
|
|
84 VAL = oct_data_conv::dt_unknown; \ |
|
|
85 } \ |
|
|
86 while (0) |
|
|
87 |
|
|
88 // I'm not sure it is worth the trouble, but let's use a lookup table |
|
|
89 // for the types that are supposed to be a specific number of bits |
|
|
90 // wide. Given the macros above, this should work as long as CHAR_BIT |
|
|
91 // is a multiple of 8 and there are types with the right sizes. |
|
|
92 // |
|
|
93 // The sized data type lookup table has the following format: |
|
|
94 // |
|
|
95 // bits |
|
|
96 // +----+----+----+----+ |
|
|
97 // | 8 | 16 | 32 | 64 | |
|
|
98 // +----+----+----+----+ |
|
|
99 // signed integer | | | | | |
|
|
100 // +----+----+----+----+ |
|
|
101 // unsigned integer | | | | | |
|
|
102 // +----+----+----+----+ |
|
|
103 // floating point | | | | | |
|
|
104 // +----+----+----+----+ |
|
|
105 // |
|
|
106 // So, the 0,3 element is supposed to contain the oct_data_conv enum |
|
|
107 // value corresponding to the correct native data type for a signed |
|
|
108 // 32-bit integer. |
|
|
109 |
|
|
110 static void |
|
|
111 init_sized_type_lookup_table (oct_data_conv::data_type table[3][4]) |
|
|
112 { |
|
|
113 int bits = 8; |
|
|
114 |
|
|
115 for (int i = 0; i < 4; i++) |
|
|
116 { |
|
3359
|
117 FIND_SIZED_INT_TYPE (table[0][i], bits, , ); |
|
3358
|
118 |
|
3359
|
119 FIND_SIZED_INT_TYPE (table[1][i], bits, unsigned, u); |
|
3358
|
120 |
|
3359
|
121 FIND_SIZED_FLOAT_TYPE (table[2][i], bits); |
|
3358
|
122 |
|
|
123 bits *= 2; |
|
|
124 } |
|
|
125 } |
|
|
126 |
|
4944
|
127 static std::string |
|
|
128 strip_spaces (const std::string& str) |
|
|
129 { |
|
|
130 int n = str.length (); |
|
|
131 |
|
|
132 int k = 0; |
|
|
133 |
|
|
134 std::string s (n, ' '); |
|
|
135 |
|
|
136 for (int i = 0; i < n; i++) |
|
|
137 if (! isspace (str[i])) |
|
|
138 s[k++] = tolower (str[i]); |
|
|
139 |
|
|
140 s.resize (k); |
|
|
141 |
|
|
142 return s; |
|
|
143 } |
|
|
144 |
|
|
145 #define GET_SIZED_INT_TYPE(T, U) \ |
|
|
146 do \ |
|
|
147 { \ |
|
|
148 switch (sizeof (T)) \ |
|
|
149 { \ |
|
|
150 case 1: \ |
|
|
151 retval = dt_ ## U ## int8; \ |
|
|
152 break; \ |
|
|
153 \ |
|
|
154 case 2: \ |
|
|
155 retval = dt_ ## U ## int16; \ |
|
|
156 break; \ |
|
|
157 \ |
|
|
158 case 4: \ |
|
|
159 retval = dt_ ## U ## int32; \ |
|
|
160 break; \ |
|
|
161 \ |
|
|
162 case 8: \ |
|
|
163 retval = dt_ ## U ## int64; \ |
|
|
164 break; \ |
|
|
165 \ |
|
|
166 default: \ |
|
|
167 retval = dt_unknown; \ |
|
|
168 break; \ |
|
|
169 } \ |
|
|
170 } \ |
|
|
171 while (0) |
|
|
172 |
|
2317
|
173 oct_data_conv::data_type |
|
3504
|
174 oct_data_conv::string_to_data_type (const std::string& str) |
|
2317
|
175 { |
|
|
176 data_type retval = dt_unknown; |
|
|
177 |
|
3358
|
178 static bool initialized = false; |
|
|
179 |
|
|
180 static data_type sized_type_table[3][4]; |
|
2317
|
181 |
|
3358
|
182 if (! initialized) |
|
|
183 { |
|
|
184 init_sized_type_lookup_table (sized_type_table); |
|
|
185 |
|
|
186 initialized = true; |
|
|
187 } |
|
|
188 |
|
4944
|
189 std::string s = strip_spaces (str); |
|
2317
|
190 |
|
4944
|
191 if (s == "int8" || s == "integer*1") |
|
|
192 retval = dt_int8; |
|
|
193 else if (s == "uint8") |
|
|
194 retval = dt_uint8; |
|
|
195 else if (s == "int16" || s == "integer*2") |
|
|
196 retval = dt_int16; |
|
|
197 else if (s == "uint16") |
|
|
198 retval = dt_uint16; |
|
|
199 else if (s == "int32" || s == "integer*4") |
|
|
200 retval = dt_int32; |
|
|
201 else if (s == "uint32") |
|
|
202 retval = dt_uint32; |
|
|
203 else if (s == "int64" || s == "integer*8") |
|
|
204 retval = dt_int64; |
|
|
205 else if (s == "uint64") |
|
|
206 retval = dt_uint64; |
|
|
207 else if (s == "single" || s == "float32" || s == "real*4") |
|
|
208 retval = dt_single; |
|
|
209 else if (s == "double" || s == "float64" || s == "real*8") |
|
|
210 retval = dt_double; |
|
|
211 else if (s == "char" || s == "char*1") |
|
2317
|
212 retval = dt_char; |
|
|
213 else if (s == "schar" || s == "signedchar") |
|
|
214 retval = dt_schar; |
|
|
215 else if (s == "uchar" || s == "unsignedchar") |
|
|
216 retval = dt_uchar; |
|
|
217 else if (s == "short") |
|
4944
|
218 GET_SIZED_INT_TYPE (short, ); |
|
2317
|
219 else if (s == "ushort" || s == "unsignedshort") |
|
4944
|
220 GET_SIZED_INT_TYPE (unsigned short, u); |
|
2317
|
221 else if (s == "int") |
|
4944
|
222 GET_SIZED_INT_TYPE (int, ); |
|
2317
|
223 else if (s == "uint" || s == "unsignedint") |
|
4944
|
224 GET_SIZED_INT_TYPE (unsigned int, u); |
|
2317
|
225 else if (s == "long") |
|
4944
|
226 GET_SIZED_INT_TYPE (long, ); |
|
2317
|
227 else if (s == "ulong" || s == "unsignedlong") |
|
4944
|
228 GET_SIZED_INT_TYPE (unsigned long, u); |
|
|
229 else if (s == "longlong") |
|
|
230 GET_SIZED_INT_TYPE (long long, ); |
|
|
231 else if (s == "ulonglong" || s == "unsignedlonglong") |
|
|
232 GET_SIZED_INT_TYPE (unsigned long long, u); |
|
3358
|
233 else if (s == "float") |
|
4944
|
234 { |
|
|
235 if (sizeof (float) == sizeof (double)) |
|
|
236 retval = dt_double; |
|
|
237 else |
|
|
238 retval = dt_single; |
|
|
239 } |
|
4970
|
240 else if (s == "logical") |
|
|
241 retval = dt_logical; |
|
2317
|
242 else |
|
|
243 (*current_liboctave_error_handler) ("invalid data type specified"); |
|
|
244 |
|
3358
|
245 if (retval == dt_unknown) |
|
|
246 (*current_liboctave_error_handler) |
|
|
247 ("unable to find matching native data type for %s", s.c_str ()); |
|
|
248 |
|
2317
|
249 return retval; |
|
|
250 } |
|
|
251 |
|
4944
|
252 void |
|
|
253 oct_data_conv::string_to_data_type |
|
|
254 (const std::string& str, int& block_size, |
|
|
255 oct_data_conv::data_type& input_type, |
|
|
256 oct_data_conv::data_type& output_type) |
|
|
257 { |
|
|
258 block_size = 1; |
|
|
259 input_type = dt_uchar; |
|
|
260 output_type = dt_double; |
|
|
261 |
|
|
262 bool input_is_output = false; |
|
|
263 |
|
|
264 std::string s = strip_spaces (str); |
|
|
265 |
|
|
266 size_t pos = 0; |
|
|
267 |
|
|
268 if (s[0] == '*') |
|
|
269 input_is_output = true; |
|
|
270 else |
|
|
271 { |
|
|
272 size_t len = s.length (); |
|
|
273 |
|
|
274 while (pos < len && isdigit (s[pos])) |
|
|
275 pos++; |
|
|
276 |
|
|
277 if (pos > 0) |
|
|
278 { |
|
|
279 if (s[pos] == '*') |
|
|
280 { |
|
|
281 block_size = atoi (s.c_str ()); |
|
|
282 s = s.substr (pos+1); |
|
|
283 } |
|
|
284 else |
|
|
285 { |
|
|
286 (*current_liboctave_error_handler) |
|
|
287 ("invalid repeat count in `%s'", str.c_str ()); |
|
|
288 |
|
|
289 return; |
|
|
290 } |
|
|
291 } |
|
|
292 } |
|
|
293 |
|
|
294 pos = s.find ('='); |
|
|
295 |
|
|
296 if (pos != std::string::npos) |
|
|
297 { |
|
|
298 if (s[pos+1] == '>') |
|
|
299 { |
|
|
300 if (input_is_output) |
|
|
301 { |
|
|
302 input_is_output = false; |
|
|
303 |
|
|
304 (*current_liboctave_warning_handler) |
|
|
305 ("warning: ignoring leading * in fread precision"); |
|
|
306 } |
|
|
307 |
|
|
308 input_type = string_to_data_type (s.substr (0, pos)); |
|
|
309 output_type = string_to_data_type (s.substr (pos+2)); |
|
|
310 } |
|
|
311 else |
|
|
312 (*current_liboctave_error_handler) |
|
|
313 ("fread: invalid precision specified"); |
|
|
314 } |
|
|
315 else |
|
|
316 { |
|
|
317 input_type = string_to_data_type (s); |
|
|
318 |
|
|
319 if (input_is_output) |
|
|
320 output_type = input_type; |
|
|
321 } |
|
|
322 } |
|
|
323 |
|
|
324 void |
|
|
325 oct_data_conv::string_to_data_type |
|
|
326 (const std::string& str, int& block_size, |
|
|
327 oct_data_conv::data_type& output_type) |
|
|
328 { |
|
|
329 block_size = 1; |
|
|
330 output_type = dt_double; |
|
|
331 |
|
|
332 std::string s = strip_spaces (str); |
|
|
333 |
|
|
334 size_t pos = 0; |
|
|
335 |
|
|
336 size_t len = s.length (); |
|
|
337 |
|
|
338 while (pos < len && isdigit (s[pos])) |
|
|
339 pos++; |
|
|
340 |
|
|
341 if (pos > 0) |
|
|
342 { |
|
|
343 if (s[pos] == '*') |
|
|
344 { |
|
|
345 block_size = atoi (s.c_str ()); |
|
|
346 s = s.substr (pos+1); |
|
|
347 } |
|
|
348 else |
|
|
349 { |
|
|
350 (*current_liboctave_error_handler) |
|
|
351 ("invalid repeat count in `%s'", str.c_str ()); |
|
|
352 |
|
|
353 return; |
|
|
354 } |
|
|
355 } |
|
|
356 |
|
|
357 output_type = string_to_data_type (s); |
|
|
358 } |
|
|
359 |
|
|
360 std::string |
|
|
361 oct_data_conv::data_type_as_string (oct_data_conv::data_type dt) |
|
|
362 { |
|
|
363 std::string retval; |
|
|
364 |
|
|
365 switch (dt) |
|
|
366 { |
|
|
367 case oct_data_conv::dt_int8: |
|
|
368 retval = "int8"; |
|
|
369 break; |
|
|
370 |
|
|
371 case oct_data_conv::dt_uint8: |
|
|
372 retval = "uint8"; |
|
|
373 break; |
|
|
374 |
|
|
375 case oct_data_conv::dt_int16: |
|
|
376 retval = "int16"; |
|
|
377 break; |
|
|
378 |
|
|
379 case oct_data_conv::dt_uint16: |
|
|
380 retval = "uint16"; |
|
|
381 break; |
|
|
382 |
|
|
383 case oct_data_conv::dt_int32: |
|
|
384 retval = "int32"; |
|
|
385 break; |
|
|
386 |
|
|
387 case oct_data_conv::dt_uint32: |
|
|
388 retval = "uint32"; |
|
|
389 break; |
|
|
390 |
|
|
391 case oct_data_conv::dt_int64: |
|
|
392 retval = "int64"; |
|
|
393 break; |
|
|
394 |
|
|
395 case oct_data_conv::dt_uint64: |
|
|
396 retval = "uint64"; |
|
|
397 break; |
|
|
398 |
|
|
399 case oct_data_conv::dt_single: |
|
|
400 retval = "single"; |
|
|
401 break; |
|
|
402 |
|
|
403 case oct_data_conv::dt_double: |
|
|
404 retval = "double"; |
|
|
405 break; |
|
|
406 |
|
|
407 case oct_data_conv::dt_char: |
|
|
408 retval = "char"; |
|
|
409 break; |
|
|
410 |
|
|
411 case oct_data_conv::dt_schar: |
|
|
412 retval = "signed char"; |
|
|
413 break; |
|
|
414 |
|
|
415 case oct_data_conv::dt_uchar: |
|
|
416 retval = "usigned char"; |
|
|
417 break; |
|
|
418 |
|
|
419 case oct_data_conv::dt_short: |
|
|
420 retval = "short"; |
|
|
421 break; |
|
|
422 |
|
|
423 case oct_data_conv::dt_ushort: |
|
|
424 retval = "unsigned short"; |
|
|
425 break; |
|
|
426 |
|
|
427 case oct_data_conv::dt_int: |
|
|
428 retval = "int"; |
|
|
429 break; |
|
|
430 |
|
|
431 case oct_data_conv::dt_uint: |
|
|
432 retval = "usigned int"; |
|
|
433 break; |
|
|
434 |
|
|
435 case oct_data_conv::dt_long: |
|
|
436 retval = "long"; |
|
|
437 break; |
|
|
438 |
|
|
439 case oct_data_conv::dt_ulong: |
|
|
440 retval = "usigned long"; |
|
|
441 break; |
|
|
442 |
|
|
443 case oct_data_conv::dt_longlong: |
|
|
444 retval = "long long"; |
|
|
445 break; |
|
|
446 |
|
|
447 case oct_data_conv::dt_ulonglong: |
|
|
448 retval = "unsigned long long"; |
|
|
449 break; |
|
|
450 |
|
|
451 case oct_data_conv::dt_float: |
|
|
452 retval = "float"; |
|
|
453 break; |
|
|
454 |
|
4970
|
455 case oct_data_conv::dt_logical: |
|
|
456 retval = "logical"; |
|
|
457 break; |
|
|
458 |
|
4944
|
459 case oct_data_conv::dt_unknown: |
|
|
460 default: |
|
|
461 retval = "unknown"; |
|
|
462 break; |
|
|
463 } |
|
|
464 |
|
|
465 return retval; |
|
|
466 } |
|
1960
|
467 |
|
3359
|
468 #define LS_DO_READ(TYPE, swap, data, size, len, stream) \ |
|
1960
|
469 do \ |
|
|
470 { \ |
|
3867
|
471 if (len > 0) \ |
|
|
472 { \ |
|
5760
|
473 OCTAVE_LOCAL_BUFFER (TYPE, ptr, len); \ |
|
|
474 stream.read (reinterpret_cast<char *> (ptr), size * len); \ |
|
3867
|
475 if (swap) \ |
|
4944
|
476 swap_bytes< size > (ptr, len); \ |
|
5760
|
477 for (int i = 0; i < len; i++) \ |
|
3867
|
478 data[i] = ptr[i]; \ |
|
|
479 } \ |
|
1960
|
480 } \ |
|
|
481 while (0) |
|
|
482 |
|
|
483 // Have to use copy here to avoid writing over data accessed via |
|
|
484 // Matrix::data(). |
|
|
485 |
|
3359
|
486 #define LS_DO_WRITE(TYPE, data, size, len, stream) \ |
|
1960
|
487 do \ |
|
|
488 { \ |
|
3867
|
489 if (len > 0) \ |
|
|
490 { \ |
|
5760
|
491 char tmp_type = type; \ |
|
3867
|
492 stream.write (&tmp_type, 1); \ |
|
5760
|
493 OCTAVE_LOCAL_BUFFER (TYPE, ptr, len); \ |
|
3867
|
494 for (int i = 0; i < len; i++) \ |
|
5760
|
495 ptr[i] = static_cast <TYPE> (data[i]); \ |
|
|
496 stream.write (reinterpret_cast<char *> (ptr), size * len); \ |
|
3867
|
497 } \ |
|
1960
|
498 } \ |
|
|
499 while (0) |
|
|
500 |
|
|
501 // Loading variables from files. |
|
|
502 |
|
|
503 static void |
|
|
504 gripe_unrecognized_float_fmt (void) |
|
|
505 { |
|
|
506 (*current_liboctave_error_handler) |
|
|
507 ("unrecognized floating point format requested"); |
|
|
508 } |
|
|
509 |
|
|
510 static void |
|
|
511 gripe_data_conversion (const char *from, const char *to) |
|
|
512 { |
|
|
513 (*current_liboctave_error_handler) |
|
|
514 ("unable to convert from %s to %s format", from, to); |
|
|
515 } |
|
|
516 |
|
|
517 // But first, some data conversion routines. |
|
|
518 |
|
|
519 // Currently, we only handle conversions for the IEEE types. To fix |
|
|
520 // that, make more of the following routines work. |
|
|
521 |
|
|
522 // XXX FIXME XXX -- assumes sizeof (Complex) == 8 |
|
|
523 // XXX FIXME XXX -- assumes sizeof (double) == 8 |
|
|
524 // XXX FIXME XXX -- assumes sizeof (float) == 4 |
|
|
525 |
|
|
526 static void |
|
4944
|
527 IEEE_big_double_to_IEEE_little_double (void *d, int len) |
|
1960
|
528 { |
|
4944
|
529 swap_bytes<8> (d, len); |
|
1960
|
530 } |
|
|
531 |
|
|
532 static void |
|
4944
|
533 VAX_D_double_to_IEEE_little_double (void * /* d */, int /* len */) |
|
1960
|
534 { |
|
|
535 gripe_data_conversion ("VAX D float", "IEEE little endian format"); |
|
|
536 } |
|
|
537 |
|
|
538 static void |
|
4944
|
539 VAX_G_double_to_IEEE_little_double (void * /* d */, int /* len */) |
|
1960
|
540 { |
|
|
541 gripe_data_conversion ("VAX G float", "IEEE little endian format"); |
|
|
542 } |
|
|
543 |
|
|
544 static void |
|
4944
|
545 Cray_to_IEEE_little_double (void * /* d */, int /* len */) |
|
1960
|
546 { |
|
|
547 gripe_data_conversion ("Cray", "IEEE little endian format"); |
|
|
548 } |
|
|
549 |
|
|
550 static void |
|
4944
|
551 IEEE_big_float_to_IEEE_little_float (void *d, int len) |
|
1960
|
552 { |
|
4944
|
553 swap_bytes<4> (d, len); |
|
1960
|
554 } |
|
|
555 |
|
|
556 static void |
|
4944
|
557 VAX_D_float_to_IEEE_little_float (void * /* d */, int /* len */) |
|
1960
|
558 { |
|
|
559 gripe_data_conversion ("VAX D float", "IEEE little endian format"); |
|
|
560 } |
|
|
561 |
|
|
562 static void |
|
4944
|
563 VAX_G_float_to_IEEE_little_float (void * /* d */, int /* len */) |
|
1960
|
564 { |
|
|
565 gripe_data_conversion ("VAX G float", "IEEE little endian format"); |
|
|
566 } |
|
|
567 |
|
|
568 static void |
|
4944
|
569 Cray_to_IEEE_little_float (void * /* d */, int /* len */) |
|
1960
|
570 { |
|
|
571 gripe_data_conversion ("Cray", "IEEE little endian format"); |
|
|
572 } |
|
|
573 |
|
|
574 static void |
|
4944
|
575 IEEE_little_double_to_IEEE_big_double (void *d, int len) |
|
1960
|
576 { |
|
4944
|
577 swap_bytes<8> (d, len); |
|
1960
|
578 } |
|
|
579 |
|
|
580 static void |
|
4944
|
581 VAX_D_double_to_IEEE_big_double (void * /* d */, int /* len */) |
|
1960
|
582 { |
|
|
583 gripe_data_conversion ("VAX D float", "IEEE big endian format"); |
|
|
584 } |
|
|
585 |
|
|
586 static void |
|
4944
|
587 VAX_G_double_to_IEEE_big_double (void * /* d */, int /* len */) |
|
1960
|
588 { |
|
|
589 gripe_data_conversion ("VAX G float", "IEEE big endian format"); |
|
|
590 } |
|
|
591 |
|
|
592 static void |
|
4944
|
593 Cray_to_IEEE_big_double (void * /* d */, int /* len */) |
|
1960
|
594 { |
|
|
595 gripe_data_conversion ("Cray", "IEEE big endian format"); |
|
|
596 } |
|
|
597 |
|
|
598 static void |
|
4944
|
599 IEEE_little_float_to_IEEE_big_float (void *d, int len) |
|
1960
|
600 { |
|
4944
|
601 swap_bytes<4> (d, len); |
|
1960
|
602 } |
|
|
603 |
|
|
604 static void |
|
4944
|
605 VAX_D_float_to_IEEE_big_float (void * /* d */, int /* len */) |
|
1960
|
606 { |
|
|
607 gripe_data_conversion ("VAX D float", "IEEE big endian format"); |
|
|
608 } |
|
|
609 |
|
|
610 static void |
|
4944
|
611 VAX_G_float_to_IEEE_big_float (void * /* d */, int /* len */) |
|
1960
|
612 { |
|
|
613 gripe_data_conversion ("VAX G float", "IEEE big endian format"); |
|
|
614 } |
|
|
615 |
|
|
616 static void |
|
4944
|
617 Cray_to_IEEE_big_float (void * /* d */, int /* len */) |
|
1960
|
618 { |
|
|
619 gripe_data_conversion ("Cray", "IEEE big endian format"); |
|
|
620 } |
|
|
621 |
|
|
622 static void |
|
4944
|
623 IEEE_little_double_to_VAX_D_double (void * /* d */, int /* len */) |
|
1960
|
624 { |
|
|
625 gripe_data_conversion ("IEEE little endian", "VAX D"); |
|
|
626 } |
|
|
627 |
|
|
628 static void |
|
4944
|
629 IEEE_big_double_to_VAX_D_double (void * /* d */, int /* len */) |
|
1960
|
630 { |
|
|
631 gripe_data_conversion ("IEEE big endian", "VAX D"); |
|
|
632 } |
|
|
633 |
|
|
634 static void |
|
4944
|
635 VAX_G_double_to_VAX_D_double (void * /* d */, int /* len */) |
|
1960
|
636 { |
|
|
637 gripe_data_conversion ("VAX G float", "VAX D"); |
|
|
638 } |
|
|
639 |
|
|
640 static void |
|
4944
|
641 Cray_to_VAX_D_double (void * /* d */, int /* len */) |
|
1960
|
642 { |
|
|
643 gripe_data_conversion ("Cray", "VAX D"); |
|
|
644 } |
|
|
645 |
|
|
646 static void |
|
4944
|
647 IEEE_little_float_to_VAX_D_float (void * /* d */, int /* len */) |
|
1960
|
648 { |
|
|
649 gripe_data_conversion ("IEEE little endian", "VAX D"); |
|
|
650 } |
|
|
651 |
|
|
652 static void |
|
4944
|
653 IEEE_big_float_to_VAX_D_float (void * /* d */, int /* len */) |
|
1960
|
654 { |
|
|
655 gripe_data_conversion ("IEEE big endian", "VAX D"); |
|
|
656 } |
|
|
657 |
|
|
658 static void |
|
4944
|
659 VAX_G_float_to_VAX_D_float (void * /* d */, int /* len */) |
|
1960
|
660 { |
|
|
661 gripe_data_conversion ("VAX G float", "VAX D"); |
|
|
662 } |
|
|
663 |
|
|
664 static void |
|
4944
|
665 Cray_to_VAX_D_float (void * /* d */, int /* len */) |
|
1960
|
666 { |
|
|
667 gripe_data_conversion ("Cray", "VAX D"); |
|
|
668 } |
|
|
669 |
|
|
670 static void |
|
4944
|
671 IEEE_little_double_to_VAX_G_double (void * /* d */, int /* len */) |
|
1960
|
672 { |
|
|
673 gripe_data_conversion ("IEEE little endian", "VAX G"); |
|
|
674 } |
|
|
675 |
|
|
676 static void |
|
4944
|
677 IEEE_big_double_to_VAX_G_double (void * /* d */, int /* len */) |
|
1960
|
678 { |
|
|
679 gripe_data_conversion ("IEEE big endian", "VAX G"); |
|
|
680 } |
|
|
681 |
|
|
682 static void |
|
4944
|
683 VAX_D_double_to_VAX_G_double (void * /* d */, int /* len */) |
|
1960
|
684 { |
|
|
685 gripe_data_conversion ("VAX D float", "VAX G"); |
|
|
686 } |
|
|
687 |
|
|
688 static void |
|
4944
|
689 Cray_to_VAX_G_double (void * /* d */, int /* len */) |
|
1960
|
690 { |
|
|
691 gripe_data_conversion ("VAX G float", "VAX G"); |
|
|
692 } |
|
|
693 |
|
|
694 static void |
|
4944
|
695 IEEE_little_float_to_VAX_G_float (void * /* d */, int /* len */) |
|
1960
|
696 { |
|
|
697 gripe_data_conversion ("IEEE little endian", "VAX G"); |
|
|
698 } |
|
|
699 |
|
|
700 static void |
|
4944
|
701 IEEE_big_float_to_VAX_G_float (void * /* d */, int /* len */) |
|
1960
|
702 { |
|
|
703 gripe_data_conversion ("IEEE big endian", "VAX G"); |
|
|
704 } |
|
|
705 |
|
|
706 static void |
|
4944
|
707 VAX_D_float_to_VAX_G_float (void * /* d */, int /* len */) |
|
1960
|
708 { |
|
|
709 gripe_data_conversion ("VAX D float", "VAX G"); |
|
|
710 } |
|
|
711 |
|
|
712 static void |
|
4944
|
713 Cray_to_VAX_G_float (void * /* d */, int /* len */) |
|
1960
|
714 { |
|
|
715 gripe_data_conversion ("VAX G float", "VAX G"); |
|
|
716 } |
|
|
717 |
|
|
718 void |
|
4944
|
719 do_double_format_conversion (void *data, int len, |
|
|
720 oct_mach_info::float_format from_fmt, |
|
|
721 oct_mach_info::float_format to_fmt) |
|
1960
|
722 { |
|
4944
|
723 switch (to_fmt) |
|
1960
|
724 { |
|
4574
|
725 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
4944
|
726 switch (from_fmt) |
|
1960
|
727 { |
|
4574
|
728 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
729 break; |
|
|
730 |
|
4574
|
731 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
732 IEEE_big_double_to_IEEE_little_double (data, len); |
|
|
733 break; |
|
|
734 |
|
4574
|
735 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
736 VAX_D_double_to_IEEE_little_double (data, len); |
|
|
737 break; |
|
|
738 |
|
4574
|
739 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
740 VAX_G_double_to_IEEE_little_double (data, len); |
|
|
741 break; |
|
|
742 |
|
4574
|
743 case oct_mach_info::flt_fmt_cray: |
|
1960
|
744 Cray_to_IEEE_little_double (data, len); |
|
|
745 break; |
|
|
746 |
|
|
747 default: |
|
|
748 gripe_unrecognized_float_fmt (); |
|
|
749 break; |
|
|
750 } |
|
|
751 break; |
|
|
752 |
|
4574
|
753 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
4944
|
754 switch (from_fmt) |
|
1960
|
755 { |
|
4574
|
756 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
757 IEEE_little_double_to_IEEE_big_double (data, len); |
|
|
758 break; |
|
|
759 |
|
4574
|
760 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
761 break; |
|
|
762 |
|
4574
|
763 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
764 VAX_D_double_to_IEEE_big_double (data, len); |
|
|
765 break; |
|
|
766 |
|
4574
|
767 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
768 VAX_G_double_to_IEEE_big_double (data, len); |
|
|
769 break; |
|
|
770 |
|
4574
|
771 case oct_mach_info::flt_fmt_cray: |
|
1960
|
772 Cray_to_IEEE_big_double (data, len); |
|
|
773 break; |
|
|
774 |
|
|
775 default: |
|
|
776 gripe_unrecognized_float_fmt (); |
|
|
777 break; |
|
|
778 } |
|
|
779 break; |
|
|
780 |
|
4574
|
781 case oct_mach_info::flt_fmt_vax_d: |
|
4944
|
782 switch (from_fmt) |
|
1960
|
783 { |
|
4574
|
784 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
785 IEEE_little_double_to_VAX_D_double (data, len); |
|
|
786 break; |
|
|
787 |
|
4574
|
788 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
789 IEEE_big_double_to_VAX_D_double (data, len); |
|
|
790 break; |
|
|
791 |
|
4574
|
792 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
793 break; |
|
|
794 |
|
4574
|
795 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
796 VAX_G_double_to_VAX_D_double (data, len); |
|
|
797 break; |
|
|
798 |
|
4574
|
799 case oct_mach_info::flt_fmt_cray: |
|
1960
|
800 Cray_to_VAX_D_double (data, len); |
|
|
801 break; |
|
|
802 |
|
|
803 default: |
|
|
804 gripe_unrecognized_float_fmt (); |
|
|
805 break; |
|
|
806 } |
|
|
807 break; |
|
|
808 |
|
4574
|
809 case oct_mach_info::flt_fmt_vax_g: |
|
4944
|
810 switch (from_fmt) |
|
1960
|
811 { |
|
4574
|
812 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
813 IEEE_little_double_to_VAX_G_double (data, len); |
|
|
814 break; |
|
|
815 |
|
4574
|
816 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
817 IEEE_big_double_to_VAX_G_double (data, len); |
|
|
818 break; |
|
|
819 |
|
4574
|
820 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
821 VAX_D_double_to_VAX_G_double (data, len); |
|
|
822 break; |
|
|
823 |
|
4574
|
824 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
825 break; |
|
|
826 |
|
4574
|
827 case oct_mach_info::flt_fmt_cray: |
|
1960
|
828 Cray_to_VAX_G_double (data, len); |
|
|
829 break; |
|
|
830 |
|
|
831 default: |
|
|
832 gripe_unrecognized_float_fmt (); |
|
|
833 break; |
|
|
834 } |
|
|
835 break; |
|
|
836 |
|
|
837 default: |
|
|
838 (*current_liboctave_error_handler) |
|
|
839 ("impossible state reached in file `%s' at line %d", |
|
|
840 __FILE__, __LINE__); |
|
|
841 break; |
|
|
842 } |
|
|
843 } |
|
|
844 |
|
|
845 void |
|
4944
|
846 do_float_format_conversion (void *data, int len, |
|
|
847 oct_mach_info::float_format from_fmt, |
|
|
848 oct_mach_info::float_format to_fmt) |
|
1960
|
849 { |
|
4944
|
850 switch (to_fmt) |
|
1960
|
851 { |
|
4574
|
852 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
4944
|
853 switch (from_fmt) |
|
1960
|
854 { |
|
4574
|
855 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
856 break; |
|
|
857 |
|
4574
|
858 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
859 IEEE_big_float_to_IEEE_little_float (data, len); |
|
|
860 break; |
|
|
861 |
|
4574
|
862 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
863 VAX_D_float_to_IEEE_little_float (data, len); |
|
|
864 break; |
|
|
865 |
|
4574
|
866 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
867 VAX_G_float_to_IEEE_little_float (data, len); |
|
|
868 break; |
|
|
869 |
|
4574
|
870 case oct_mach_info::flt_fmt_cray: |
|
1960
|
871 Cray_to_IEEE_little_float (data, len); |
|
|
872 break; |
|
|
873 |
|
|
874 default: |
|
|
875 gripe_unrecognized_float_fmt (); |
|
|
876 break; |
|
|
877 } |
|
|
878 break; |
|
|
879 |
|
4574
|
880 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
4944
|
881 switch (from_fmt) |
|
1960
|
882 { |
|
4574
|
883 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
884 IEEE_little_float_to_IEEE_big_float (data, len); |
|
|
885 break; |
|
|
886 |
|
4574
|
887 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
888 break; |
|
|
889 |
|
4574
|
890 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
891 VAX_D_float_to_IEEE_big_float (data, len); |
|
|
892 break; |
|
|
893 |
|
4574
|
894 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
895 VAX_G_float_to_IEEE_big_float (data, len); |
|
|
896 break; |
|
|
897 |
|
4574
|
898 case oct_mach_info::flt_fmt_cray: |
|
1960
|
899 Cray_to_IEEE_big_float (data, len); |
|
|
900 break; |
|
|
901 |
|
|
902 default: |
|
|
903 gripe_unrecognized_float_fmt (); |
|
|
904 break; |
|
|
905 } |
|
|
906 break; |
|
|
907 |
|
4574
|
908 case oct_mach_info::flt_fmt_vax_d: |
|
4944
|
909 switch (from_fmt) |
|
1960
|
910 { |
|
4574
|
911 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
912 IEEE_little_float_to_VAX_D_float (data, len); |
|
|
913 break; |
|
|
914 |
|
4574
|
915 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
916 IEEE_big_float_to_VAX_D_float (data, len); |
|
|
917 break; |
|
|
918 |
|
4574
|
919 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
920 break; |
|
|
921 |
|
4574
|
922 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
923 VAX_G_float_to_VAX_D_float (data, len); |
|
|
924 break; |
|
|
925 |
|
4574
|
926 case oct_mach_info::flt_fmt_cray: |
|
1960
|
927 Cray_to_VAX_D_float (data, len); |
|
|
928 break; |
|
|
929 |
|
|
930 default: |
|
|
931 gripe_unrecognized_float_fmt (); |
|
|
932 break; |
|
|
933 } |
|
|
934 break; |
|
|
935 |
|
4574
|
936 case oct_mach_info::flt_fmt_vax_g: |
|
4944
|
937 switch (from_fmt) |
|
1960
|
938 { |
|
4574
|
939 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
940 IEEE_little_float_to_VAX_G_float (data, len); |
|
|
941 break; |
|
|
942 |
|
4574
|
943 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
944 IEEE_big_float_to_VAX_G_float (data, len); |
|
|
945 break; |
|
|
946 |
|
4574
|
947 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
948 VAX_D_float_to_VAX_G_float (data, len); |
|
|
949 break; |
|
|
950 |
|
4574
|
951 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
952 break; |
|
|
953 |
|
4574
|
954 case oct_mach_info::flt_fmt_cray: |
|
1960
|
955 Cray_to_VAX_G_float (data, len); |
|
|
956 break; |
|
|
957 |
|
|
958 default: |
|
|
959 gripe_unrecognized_float_fmt (); |
|
|
960 break; |
|
|
961 } |
|
|
962 break; |
|
|
963 |
|
|
964 default: |
|
|
965 (*current_liboctave_error_handler) |
|
|
966 ("impossible state reached in file `%s' at line %d", |
|
|
967 __FILE__, __LINE__); |
|
|
968 break; |
|
|
969 } |
|
|
970 } |
|
|
971 |
|
|
972 void |
|
4944
|
973 do_float_format_conversion (void *data, size_t sz, int len, |
|
|
974 oct_mach_info::float_format from_fmt, |
|
|
975 oct_mach_info::float_format to_fmt) |
|
|
976 { |
|
|
977 switch (sz) |
|
|
978 { |
|
|
979 case sizeof (float): |
|
|
980 do_float_format_conversion (data, len, from_fmt, to_fmt); |
|
|
981 break; |
|
|
982 |
|
|
983 case sizeof (double): |
|
|
984 do_double_format_conversion (data, len, from_fmt, to_fmt); |
|
|
985 break; |
|
|
986 |
|
|
987 default: |
|
|
988 (*current_liboctave_error_handler) |
|
|
989 ("impossible state reached in file `%s' at line %d", |
|
|
990 __FILE__, __LINE__); |
|
|
991 break; |
|
|
992 } |
|
|
993 } |
|
|
994 |
|
|
995 |
|
|
996 void |
|
3504
|
997 read_doubles (std::istream& is, double *data, save_type type, int len, |
|
4944
|
998 bool swap, oct_mach_info::float_format fmt) |
|
1960
|
999 { |
|
|
1000 switch (type) |
|
|
1001 { |
|
|
1002 case LS_U_CHAR: |
|
|
1003 LS_DO_READ (unsigned char, swap, data, 1, len, is); |
|
|
1004 break; |
|
|
1005 |
|
|
1006 case LS_U_SHORT: |
|
|
1007 LS_DO_READ (unsigned TWO_BYTE_INT, swap, data, 2, len, is); |
|
|
1008 break; |
|
|
1009 |
|
|
1010 case LS_U_INT: |
|
|
1011 LS_DO_READ (unsigned FOUR_BYTE_INT, swap, data, 4, len, is); |
|
|
1012 break; |
|
|
1013 |
|
|
1014 case LS_CHAR: |
|
|
1015 LS_DO_READ (signed char, swap, data, 1, len, is); |
|
|
1016 break; |
|
|
1017 |
|
|
1018 case LS_SHORT: |
|
|
1019 LS_DO_READ (TWO_BYTE_INT, swap, data, 2, len, is); |
|
|
1020 break; |
|
|
1021 |
|
|
1022 case LS_INT: |
|
|
1023 LS_DO_READ (FOUR_BYTE_INT, swap, data, 4, len, is); |
|
|
1024 break; |
|
|
1025 |
|
|
1026 case LS_FLOAT: |
|
|
1027 { |
|
5760
|
1028 OCTAVE_LOCAL_BUFFER (float, ptr, len); |
|
|
1029 is.read (reinterpret_cast<char *> (ptr), 4 * len); |
|
|
1030 do_float_format_conversion (ptr, len, fmt); |
|
|
1031 for (int i = 0; i < len; i++) |
|
1960
|
1032 data[i] = ptr[i]; |
|
|
1033 } |
|
|
1034 break; |
|
|
1035 |
|
3359
|
1036 case LS_DOUBLE: // No conversion necessary. |
|
5760
|
1037 is.read (reinterpret_cast<char *> (data), 8 * len); |
|
1960
|
1038 do_double_format_conversion (data, len, fmt); |
|
|
1039 break; |
|
|
1040 |
|
|
1041 default: |
|
3504
|
1042 is.clear (std::ios::failbit|is.rdstate ()); |
|
1960
|
1043 break; |
|
|
1044 } |
|
|
1045 } |
|
|
1046 |
|
|
1047 void |
|
3504
|
1048 write_doubles (std::ostream& os, const double *data, save_type type, int len) |
|
1960
|
1049 { |
|
|
1050 switch (type) |
|
|
1051 { |
|
|
1052 case LS_U_CHAR: |
|
|
1053 LS_DO_WRITE (unsigned char, data, 1, len, os); |
|
|
1054 break; |
|
|
1055 |
|
|
1056 case LS_U_SHORT: |
|
|
1057 LS_DO_WRITE (unsigned TWO_BYTE_INT, data, 2, len, os); |
|
|
1058 break; |
|
|
1059 |
|
|
1060 case LS_U_INT: |
|
|
1061 LS_DO_WRITE (unsigned FOUR_BYTE_INT, data, 4, len, os); |
|
|
1062 break; |
|
|
1063 |
|
|
1064 case LS_CHAR: |
|
|
1065 LS_DO_WRITE (signed char, data, 1, len, os); |
|
|
1066 break; |
|
|
1067 |
|
|
1068 case LS_SHORT: |
|
|
1069 LS_DO_WRITE (TWO_BYTE_INT, data, 2, len, os); |
|
|
1070 break; |
|
|
1071 |
|
|
1072 case LS_INT: |
|
|
1073 LS_DO_WRITE (FOUR_BYTE_INT, data, 4, len, os); |
|
|
1074 break; |
|
|
1075 |
|
|
1076 case LS_FLOAT: |
|
|
1077 LS_DO_WRITE (float, data, 4, len, os); |
|
|
1078 break; |
|
|
1079 |
|
3359
|
1080 case LS_DOUBLE: // No conversion necessary. |
|
1960
|
1081 { |
|
5760
|
1082 char tmp_type = static_cast<char> (type); |
|
1960
|
1083 os.write (&tmp_type, 1); |
|
5760
|
1084 os.write (reinterpret_cast <const char *> (data), 8 * len); |
|
1960
|
1085 } |
|
|
1086 break; |
|
|
1087 |
|
|
1088 default: |
|
|
1089 (*current_liboctave_error_handler) |
|
|
1090 ("unrecognized data format requested"); |
|
|
1091 break; |
|
|
1092 } |
|
|
1093 } |
|
|
1094 |
|
|
1095 /* |
|
|
1096 ;;; Local Variables: *** |
|
|
1097 ;;; mode: C++ *** |
|
|
1098 ;;; End: *** |
|
|
1099 */ |
